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What is the main reason for some dwarf plants appearing when two hybrid tall plants are crossed?

Answer and explanation

Correct answer: Recessive information coming from both parents

The governing concept is segregation of alleles in a monohybrid cross. If tall hybrids are Tt × Tt, each parent can pass either T or t. The possible offspring combinations are TT, Tt, Tt, and tt. Only tt expresses dwarfness, so approximately one quarter of the offspring may be dwarf under the usual assumptions. Option A is correct because the dwarf form appears when a recessive allele is inherited from both parents; the other choices contradict genetics.

Related tags

Hybrid-CrossF2-GenerationRecessiveHeredity And EvolutionWorld Of LivingScienceClass 10 Mcq

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